Refrigerator



FIG. 1 is a front view of the refrigerator;

FIG. 2 is a rear view of the refrigerator;

FIG. 3 is a left side view of the refrigerator;

FIG. 4 is a right side view of the refrigerator;

FIG. 5 is a plan view of the refrigerator;

FIG. 6 is a bottom view of the refrigerator;

FIG. 7 is a reference front view of the refrigerator showing a state in which the door is open;

FIG. 8 is a reference perspective view of the refrigerator; and,

FIG. 9 is a reference perspective view of the refrigerator showing a state in which the door is open. 

The ornamental design for a refrigerator, as shown and described. 